<?php
/**
 * Smarty plugin
 *
 * @package Smarty
 * @subpackage PluginsModifierCompiler
 */

/**
 *
 * @ignore
 *
 */
require_once (SMARTY_PLUGINS_DIR . 'shared.literal_compiler_param.php');

/**
 * Smarty escape modifier plugin
 *
 * Type: modifier<br>
 * Name: escape<br>
 * Purpose: escape string for output
 *
 * @link http://www.smarty.net/docsv2/en/language.modifier.escape
 *       count_characters (Smarty online manual)
 * @author Rodney Rehm
 * @param $params array
 *       	 parameters
 * @return string with compiled code
 */
function smarty_modifiercompiler_escape($params, $compiler) {
	try {
		$esc_type = smarty_literal_compiler_param ( $params, 1, 'html' );
		$char_set = smarty_literal_compiler_param ( $params, 2, Smarty::$_CHARSET );
		$double_encode = smarty_literal_compiler_param ( $params, 3, true );
		
		if (! $char_set) {
			$char_set = Smarty::$_CHARSET;
		}
		
		switch ($esc_type) {
			case 'html' :
				return 'htmlspecialchars(' . $params [0] . ', ENT_QUOTES, ' . var_export ( $char_set, true ) . ', ' . var_export ( $double_encode, true ) . ')';
			
			case 'htmlall' :
				if (Smarty::$_MBSTRING) {
					return 'mb_convert_encoding(htmlspecialchars(' . $params [0] . ', ENT_QUOTES, ' . var_export ( $char_set, true ) . ', ' . var_export ( $double_encode, true ) . '), "HTML-ENTITIES", ' . var_export ( $char_set, true ) . ')';
				}
				
				// no MBString fallback
				return 'htmlentities(' . $params [0] . ', ENT_QUOTES, ' . var_export ( $char_set, true ) . ', ' . var_export ( $double_encode, true ) . ')';
			
			case 'url' :
				return 'rawurlencode(' . $params [0] . ')';
			
			case 'urlpathinfo' :
				return 'str_replace("%2F", "/", rawurlencode(' . $params [0] . '))';
			
			case 'quotes' :
				// escape unescaped single quotes
				return 'preg_replace("%(?<!\\\\\\\\)\'%", "\\\'",' . $params [0] . ')';
			
			case 'javascript' :
				// escape quotes and backslashes, newlines, etc.
				return 'strtr(' . $params [0] . ', array("\\\\" => "\\\\\\\\", "\'" => "\\\\\'", "\"" => "\\\\\"", "\\r" => "\\\\r", "\\n" => "\\\n", "</" => "<\/" ))';
		
		}
	} catch ( SmartyException $e ) {
		// pass through to regular plugin fallback
	}
	
	// could not optimize |escape call, so fallback to regular plugin
	if ($compiler->tag_nocache | $compiler->nocache) {
		$compiler->template->required_plugins ['nocache'] ['escape'] ['modifier'] ['file'] = SMARTY_PLUGINS_DIR . 'modifier.escape.php';
		$compiler->template->required_plugins ['nocache'] ['escape'] ['modifier'] ['function'] = 'smarty_modifier_escape';
	} else {
		$compiler->template->required_plugins ['compiled'] ['escape'] ['modifier'] ['file'] = SMARTY_PLUGINS_DIR . 'modifier.escape.php';
		$compiler->template->required_plugins ['compiled'] ['escape'] ['modifier'] ['function'] = 'smarty_modifier_escape';
	}
	return 'smarty_modifier_escape(' . join ( ', ', $params ) . ')';
}

?>